my guy not even close to it…
This is a well written text on one of the forums related to military tech
"The technical result, the achievement of which the invention is directed, is to reduce the magnitude of the aircraft radar visibility to an average value of the order of 0.1 – 1 m 2 .
That’s comparable to a clean Super Hornet and it shouldn’t be a surprise when Su-57 follows many of the same RCS-reduction measures such as using radar blockers to hide the engine face instead of an actual serpentine duct.
It’s not just Su-57 being less stealthy than F-35 (-40 dBsm) – it has a 1,000 times bigger RCS. Since detection range is proportional to the 4th root of RCS, a 1,000 times bigger RCS equates to 5.6 times greater detection range. And this is after giving Su-57 every benefit of doubt, the F-35’s RCS is very likely closer to -50 dB.
The F-35 will be enjoying almost 6 times greater detection range against Su-57. The difference is so huge that Su-57 will be hopelessly outclassed. We see this time and again in Red Flags and Northern Edge with F-35 having 28–1 kill ratio against modern 4th gen. aircraft backed by AWACS and SAMs. The enormous difference in detection range from Stealth is the primary factor for such a lopsided kill ratio.
It doesn’t matter how capable radar or EW suite you have, they simply can’t compensate the enormous difference in detection range from a VLO airframe. You can have amazing performance at airshows but without Stealth you’re not gonna be in a fight against 5th gen. aircraft.
And this is ignoring the infancy of Su-57 program and consistent delay in the production/IOC since last 8 years or the fact Su-57’s avionics suite is not remotely comparable to that of F-35. The F-35 has a bigger and much more capable radar and orders of magnitude more powerful EW suite giving vastly superior Situational Awareness.
Where F-35’s DAS make it the only Fighter to fully operate in the IR spectrum, Su-57 can’t even use its forward-hemisphere IRST without further ruining its RCS. Which in a matter of fact it does reduce the RCS
Yet the Su-57 is portrayed as an equal counterpart to F-22 and F-35 with people talking about its kinematic performance or side-arrays without even understanding their actual purpose, let alone the impact on EMCON. How great are the Directed IRCMs (Laser turrets) while turning a blind eye to the fact Su-57 use a UV based Missile Warning System – making Su-57 significantly vulnerable to BVR missiles. 15 years since first flight and there’s no indication of K-77M or K-74M anywhere close to being operational, forcing Su-57 to fly with R-77 & R-74 externally (as they won’t fit inside)."
